Due to pointer arithmetic, "sizeof(u32) * ARCH_DMA_MINALIGN" is subtracted. It seems that the original intention was to just subtract ARCH_DMA_MINALIGN. Fix it.
Signed-off-by: Michael Walle michael@walle.cc --- drivers/fpga/zynqpl.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/fpga/zynqpl.c b/drivers/fpga/zynqpl.c index a11e485525..2de40109a8 100644 --- a/drivers/fpga/zynqpl.c +++ b/drivers/fpga/zynqpl.c @@ -315,7 +315,7 @@ static u32 *zynq_align_dma_buffer(u32 *buf, u32 len, u32 swap) if (new_buf > buf) { debug("%s: Aligned buffer is after buffer start\n", __func__); - new_buf -= ARCH_DMA_MINALIGN; + new_buf = (u32 *)((u32)new_buf - ARCH_DMA_MINALIGN); } printf("%s: Align buffer at %x to %x(swap %d)\n", __func__, (u32)buf, (u32)new_buf, swap);